[riot-devel] [riot-users] Segmentation fault on example

Janos Kutscherauer janos.kutscherauer at fu-berlin.de
Mon Feb 17 21:11:26 CET 2014


Hi Ludwig,

concerning this issue from the users list, i though with these new clues 
it's more a developer thing?

I tracked down the commit, after which things don't work for me, on both 
my ubuntu machines (although almost identical setup, except hardware).

when i do
     $ git log
i get, among others:

     commit 4939473afbcfe981b6411595a3b73e792ae28775
     Author: Ludwig Ortmann <ludwig.ortmann at fu-berlin.de>
     Date:   Fri Jan 24 17:03:01 2014 +0100

         guard malloc/free family

     commit 5566734575084cc58e45d7320ffbab15e0efddba
     Merge: 5c013e1 7148f1d
     Author: Ludwig Ortmann <ludwig.ortmann at fu-berlin.de>
     Date:   Thu Jan 23 08:35:01 2014 -0800

         Merge pull request #555 from LudwigOrtmann/tap_error

         improve error messages when tap ioctls fail

when i do
     $ git checkout 4939473afbcfe981b6411595a3b73e792ae28775
     $ cd examples/hello-world
     $ make -B clean all
     $ make term
/home/janos/src/riot-os/RIOT/examples/hello-world/bin/native//hello-world.elf 

     make: *** [term] Segmentation fault (core dumped)

but with the previous commit
     $ git checkout 5566734575084cc58e45d7320ffbab15e0efddba
     $ cd examples/hello-world/
     $ make -B clean all
     $ make 
term/home/janos/src/riot-os/RIOT/examples/hello-world/bin/native//hello-world.elf 

     RIOT native interrupts/signals initialized.
     LED_GREEN_OFF
     LED_RED_ON
     RIOT native board initialized.
     RIOT native hardware initialization complete.

     kernel_init(): This is RIOT! (Version: 2014.01-24-g5566-HEAD)
     Scheduler...[OK]
     kernel_init(): jumping into first task...
     Hello World!

So commit "4939473afbcfe981b6411595a3b73e792ae28775" seems to be 
interesting to investigate on, i just don't know yet how to run a diff. 
All pretty new to me...

Oh, and get better soon!

Cheers
Janos




On 02/17/2014 08:00 PM, Janos Kutscherauer wrote:
> One more info:
> my native GCC version is
> $gcc --version
> gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
>
> Cheers
> Janos
>
>
>
> On 02/17/2014 07:08 PM, Janos Kutscherauer wrote:
>> Hi Ludwig,
>>
>> i am having the same problem as reported below by Victor.
>>
>> I did:
>> $ git clone https://github.com/RIOT-OS/RIOT.git
>> $ cd RIOT/examples/hello-world
>> $ make -B clean all
>> $ make term
>> /home/***/RIOT/examples/hello-world/bin/native/hello-world.elf
>> make: *** [term] Segmentation fault (core dumped)
>>
>> A couple of weeks ago (before the announcement of release 2014.01), i 
>> already had a go on RIOT, and i am pretty sure - yet without proof! - 
>> that i was able to run the hello world example on the native build. 
>> Now i did a git clone again.
>>
>> My system is:
>> - Ubuntu 12.04.4 LTS, x86/32bit
>> - As cross compiler i use the binaries from 
>> https://launchpad.net/gcc-arm-embedded, version 
>> gcc-arm-none-eabi-4_8-2013q4
>>
>> For the versions i'm not so sure, so i try to give some hints:
>>
>> GCC-Version:
>> $ cd
>>  ./gcc-arm-none-eabi-4_8-2013q4/bin/arm-none-eabi-gcc --version
>> arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.8.3 
>> 20131129 (release) [ARM/embedded-4_8-branch revision 205641]
>> Copyright (C) 2013 Free Software Foundation, Inc.
>> This is free software; see the source for copying conditions. There 
>> is NO
>> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR 
>> PURPOSE.
>>
>> For the libc, i really don't know(, also not much about it!). When i 
>> run as proposed in 
>> http://stackoverflow.com/questions/9705660/check-glibc-version-for-a-particular-gcc-compiler 
>> to find out the version,
>> $ gcc glibc-version.c -o glibc-version
>> $ ./glibc-version
>> GNU libc version: 2.15
>>
>> But, compiling it with the cross-compiler (above), doesn't work
>> $ ~/gcc-arm-none-eabi-4_8-2013q4/arm-none-eabi/bin/gcc 
>> glibc-version.c -o glibc-version
>> gcc: error trying to exec 'cc1': execvp: No such file or directory
>>
>> and also
>> $ ~/gcc-arm-none-eabi-4_8-2013q4/bin/arm-none-eabi-gcc 
>> glibc-version.c -o glibc-version
>> glibc-version.c:3:30: fatal error: gnu/libc-version.h: No such file 
>> or directory
>>  #include <gnu/libc-version.h>
>>                               ^
>> compilation terminated.
>>
>> Looks like either
>> - i don't have libc ready for cross-compiling...?
>> - Don't know how to use my cross-compiler...
>>
>>
>> Do you have any suggestions?
>>
>> Thanks,
>> Janos
>>
>>
>>
>>
>>
>> On 02/13/2014 03:53 PM, Ludwig Ortmann wrote:
>>> Hi Victor,
>>>
>>> which versions of gcc, libc and Linux are you using, and on which
>>> architecture are you running it?
>>>
>>> With current master I don't have any trouble with:
>>>      cd examples/hello-world
>>>      make -B clean all
>>>      make term
>>>
>>> Cheers, Ludwig
>>>
>>> On Thu, Feb 13, 2014 at 06:42:49AM -0800, Victor Pangaldus wrote:
>>>> Hi all,
>>>>
>>>>
>>>> I recently found RIOT OS and decide to give it a try. However, I 
>>>> got segmentation fault when I tried to run the example. Here is the 
>>>> step I take:
>>>> * clone the RIOT source
>>>>    git clone https://github.com/RIOT-OS/RIOT.git
>>>> * compile the example for linux machine (I already have the GCC 
>>>> toolchains installed)
>>>>    cd examples/hello-world
>>>>   make
>>>> * run theexample (the .elf file)
>>>>
>>>>   ./bin/native/hello-world.elf
>>>>   Segmentation fault
>>>> I also tried other example (default) without luck. Is there
>>>> something that I miss? I have not changed anything on the makefile,
>>>> and I check that the BOARD is native, which is the correct target
>>>> (according to the RIOT wiki)  if I want to run it on linux machine.
>>>>
>>>>
>>>> Thanks.
>>>> Regards,
>>>> _______________________________________________
>>>> users mailing list
>>>> users at riot-os.org
>>>> http://lists.riot-os.org/mailman/listinfo/users
>>> _______________________________________________
>>> users mailing list
>>> users at riot-os.org
>>> http://lists.riot-os.org/mailman/listinfo/users
>>
>> _______________________________________________
>> users mailing list
>> users at riot-os.org
>> http://lists.riot-os.org/mailman/listinfo/users
>
> _______________________________________________
> users mailing list
> users at riot-os.org
> http://lists.riot-os.org/mailman/listinfo/users



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